Estimation of the delay-fired explosion’s duration based on the wavelet analysis results of its seismogram

Author:

Silkin K.Yu.1

Affiliation:

1. Voronezh State University

Abstract

The article considers the problem of observing delay-fired industrial explosions using their single seismic receiver seismogram. It is shown that the seismogram’s spectral image of a delay-fired explosion carries information about both the delay between individual explosion steps and its total duration. Assumption is made that the results of the continuous wavelet transform for the total duration of the blasting process can provide more accurate and reliable information. Technique for estimating the value of this parameter based on several transformations of the primary waveletogram is described. Sequential calculation of the energogram, correlogram and haarogram makes it possible to visualize and measure pseudocycles of the energy distribution of seismic signals from a delay-fired explosion.

Publisher

Geophysical Survey of the Russian Academy of Sciences - GS RAS

Reference14 articles.

1. Adushkin, V.V., & Spivak, A.A. (2013). [Influence of the path on the attenuation of the seismic signal from short-delayed quarry explosions]. Dinamicheskie processy v geosferah [Dynamic Processes in Geospheres], 4, 118-126. (In Russ.).

2. Arrowsmith, S., Hedlin, M., Arrowsmith, M., & Stump, B. (2007). Identification of delay-fired mining explosions using seismic arrays: Application to the PDAR array in Wyoming, USA. Bulletin of the Seismological Society of America, 97, 989-1001. https://doi.org/10.1785/0120060136

3. Asming, V.E., & Baranov, S.V. (2006). [Using spectral and time-frequency variations of seismic signals to distinguish earthquakes and explosions in the Euro-Arctic region]. In Sovremennye metody obrabotki i interpretatsii seismologicheskikh dannykh. Materialy Mezhdunarodnoi seismologicheskoi shkoly [Modern methods of processing and interpretation of seismological data. Proceedings of the International Seismological Workshop] (pp. 23-27). Obninsk, Russia: GS RAS Publ. (In Russ.).

4. Dubjanskij, A.I., & Silkin, K.Yu. (2018). [Deciphering the structure of industrial explosions using wavelet analysis of seismological records]. In Sovremennye problemy i opyt gidrogeologicheskih, inzhenernogeologicheskih i jekologo-geologicheskih issledovanij na territorii Central’no-Chernozemnogo regiona. Materialy regional’noj nauchno-prakticheskoj konferencii [Modern problems and experience of hydrogeological, engineering- geological and ecological-geological research on the territory of the Central Black Earth region. Proceedings of the regional scientific-practical conference] (pp. 70-75). Voronezh, Russia: Publishing and printing center “Scientific Book”. (In Russ.).

5. Emanov, A.F. (1982). [Influence of short-delay blasting on seismograms of deep seismic sounding]. Geologija i geofizika [Geology and Geophysics], 23(9), 81-89. (In Russ.).

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